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architecture-decision

architecture-decision is a skill for Claude Code from cenconq25/claude-code-app-studio. It costs 62 tokens per session (2,958 once invoked), scanned A, original, MIT.

A record of an important software-architecture choice, including its background, alternatives, decision, and consequences. An ADR is a written document that preserves why a system was designed a certain way.

In plain words
What is it for?
Use it to document mobile-architecture decisions, connect them to product requirements, record dependencies, and review or update existing decision records.
Why use it?
It prevents teams from losing the reasoning behind major decisions and helps reveal compatibility or planning risks.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: model in frontmatter; names the AskUserQuestion tool.

not rated 40repo 4mo ago A scan 62 tokens original MIT

Good fit Use it to document mobile-architecture decisions, connect them to product requirements, record dependencies, and review or update existing decision records.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/cenconq25/claude-code-app-studio/architecture-decision
View source ↗ cenconq25/claude-code-app-studio
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add cenconq25/claude-code-app-studio --skill architecture-decision
Clone the repo
git clone --depth 1 https://github.com/cenconq25/claude-code-app-studio

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for architecture-decision

README.md
[![agentmods](https://agentmods.dev/badge/skills/cenconq25/claude-code-app-studio/architecture-decision.svg)](https://agentmods.dev/skills/cenconq25/claude-code-app-studio/architecture-decision)
Your own site
<a href="https://agentmods.dev/skills/cenconq25/claude-code-app-studio/architecture-decision"><img src="https://agentmods.dev/badge/skills/cenconq25/claude-code-app-studio/architecture-decision.svg" alt="Measured on agentmods" height="20"></a>
Per session 62 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,958 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00062 $0.02958
Opus 5 $0.00031 $0.01479
Sonnet 5 $0.00012 $0.00592
Haiku 4.5 $0.00006 $0.00296

Measured 8d ago against content hash 9025cae8ff3f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

architecture-decision scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.claude/skills/architecture-decision/SKILL.md · 408 lines

How it starts

The opening of the file, as written. The whole thing — 408 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Architecture Decision

ADRs are the durable memory of why the architecture is shaped a given way. This skill captures one decision, anchored to PRD requirements, with the framework's knowledge-cutoff risk explicitly tracked.

Output: docs/architecture/ADR-NNNN-<slug>.md

Phase 0: Argument Parsing & Mode

Resolve review mode:

  1. --review flag if present
  2. Else production/review-mode.txt
  3. Else default lean

If the argument starts with retrofit <path>, enter retrofit mode:

  1. Read the existing ADR
  2. Identify which standard sections are present:
    • ## Status — CRITICAL if missing (/story-readiness cannot validate)
    • ## ADR Dependencies — HIGH (sequencing risk)
    • ## Framework Compatibility — HIGH (knowledge-cutoff risk untracked)
    • ## PRD Requirements Addressed — HIGH (traceability lost)
  3. Print the gap report
  4. Ask: "Add the [N] missing sections without modifying existing content?"
  5. If yes:
    • For Status: ask the user (Proposed / Accepted / Deprecated / Superseded)
    • For ADR Dependencies: ask Depends On / Enables / Blocks (each can be "None")
    • For Framework Compatibility: read framework reference docs and generate the table; ask user to confirm domain
    • For PRD Requirements Addressed: ask which PRDs and which requirements
    • Append using Edit tool — never modify existing sections
  6. Done; suggest re-running /architecture-review to validate.

If no argument or title:

"What technical decision are you documenting? Provide a short slug (e.g., state-management, navigation-library, auth-token-storage)."

Then proceed to Phase 1.

Phase 1: Load Framework Context

Always run before drafting. The model has knowledge cutoffs; the framework reference docs are the source of truth.

  1. Read .claude/docs/technical-preferences.md to identify the framework + version
  2. If [TO BE CONFIGURED]: stop and recommend /setup-framework
  3. Identify the domain of this decision from the title:
    • State management
    • Navigation
    • Networking / API client
    • Persistence (local DB, secure storage)
    • Auth (token storage, refresh)
    • Push notifications
    • Background tasks
    • Analytics / instrumentation
    • Feature flags / remote config
    • Error reporting
    • i18n
    • Theming / dark mode
    • Build system / CI
    • Testing strategy
    • Code organization / module boundaries
    • In-app purchase / subscriptions
    • Deep links / universal links
    • Biometrics / secure enclave
    • Camera / media / AVFoundation / CameraX
    • Maps / location
  4. Read docs/framework-reference/<framework>/conventions.md
  5. Read docs/framework-reference/<framework>/breaking-changes.md — flag any post-cutoff entries in this domain
  6. Read docs/framework-reference/<framework>/VERSION.md — note the risk level

Read the full file on GitHub · 408 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 8d ago First seen · 408 lines · 62 tokens per session scan A 9025cae8ff3f

Subscribe to this mod's changes

architecture-decision is a skill published in the GitHub repository cenconq25/claude-code-app-studio (40 stars, last pushed 4mo ago), licensed MIT. It adds 62 tokens to every session and 2,958 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

PlanningWriting and docs
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